diff --git a/include/v8.h b/include/v8.h
index f23567c1429a..f2e12dcfd68e 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -996,6 +996,10 @@ class V8_EXPORT PrimitiveArray {
  public:
   static Local<PrimitiveArray> New(Isolate* isolate, int length);
   int Length() const;
+  V8_DEPRECATED("Use Isolate* version",
+      void Set(int index, Local<Primitive> item));
+  V8_DEPRECATED("Use Isolate* version",
+      Local<Primitive> Get(int index));
   void Set(Isolate* isolate, int index, Local<Primitive> item);
   Local<Primitive> Get(Isolate* isolate, int index);
 };
@@ -1699,6 +1703,8 @@ class V8_EXPORT StackTrace {
   /**
    * Returns a StackFrame at a particular index.
    */
+  V8_DEPRECATED("Use Isolate version",
+                Local<StackFrame> GetFrame(uint32_t index) const);
   Local<StackFrame> GetFrame(Isolate* isolate, uint32_t index) const;
 
   /**
@@ -2407,6 +2413,13 @@ class V8_EXPORT Value : public Data {
   V8_DEPRECATE_SOON("Use maybe version",
                     Local<Int32> ToInt32(Isolate* isolate) const);
 
+  inline V8_DEPRECATED("Use maybe version",
+                       Local<Boolean> ToBoolean() const);
+  inline V8_DEPRECATED("Use maybe version", Local<String> ToString() const);
+  inline V8_DEPRECATED("Use maybe version", Local<Object> ToObject() const);
+  inline V8_DEPRECATED("Use maybe version",
+                       Local<Integer> ToInteger() const);
+
   /**
    * Attempts to convert a string to an array index.
    * Returns an empty handle if the conversion fails.
@@ -2426,7 +2439,14 @@ class V8_EXPORT Value : public Data {
       Local<Context> context) const;
   V8_WARN_UNUSED_RESULT Maybe<int32_t> Int32Value(Local<Context> context) const;
 
+  V8_DEPRECATED("Use maybe version", bool BooleanValue() const);
+  V8_DEPRECATED("Use maybe version", double NumberValue() const);
+  V8_DEPRECATED("Use maybe version", int64_t IntegerValue() const);
+  V8_DEPRECATED("Use maybe version", uint32_t Uint32Value() const);
+  V8_DEPRECATED("Use maybe version", int32_t Int32Value() const);
+
   /** JS == */
+  V8_DEPRECATED("Use maybe version", bool Equals(Local<Value> that) const);
   V8_WARN_UNUSED_RESULT Maybe<bool> Equals(Local<Context> context,
                                            Local<Value> that) const;
   bool StrictEquals(Local<Value> that) const;
@@ -2533,6 +2553,8 @@ class V8_EXPORT String : public Name {
    * Returns the number of bytes in the UTF-8 encoded
    * representation of this string.
    */
+  V8_DEPRECATED("Use Isolate version instead", int Utf8Length() const);
+
   int Utf8Length(Isolate* isolate) const;
 
   /**
@@ -2589,12 +2611,23 @@ class V8_EXPORT String : public Name {
   // 16-bit character codes.
   int Write(Isolate* isolate, uint16_t* buffer, int start = 0, int length = -1,
             int options = NO_OPTIONS) const;
+  V8_DEPRECATED("Use Isolate* version",
+                int Write(uint16_t* buffer, int start = 0, int length = -1,
+                          int options = NO_OPTIONS) const);
   // One byte characters.
   int WriteOneByte(Isolate* isolate, uint8_t* buffer, int start = 0,
                    int length = -1, int options = NO_OPTIONS) const;
+  V8_DEPRECATED("Use Isolate* version",
+                int WriteOneByte(uint8_t* buffer, int start = 0,
+                                 int length = -1, int options = NO_OPTIONS)
+                    const);
   // UTF-8 encoded characters.
   int WriteUtf8(Isolate* isolate, char* buffer, int length = -1,
                 int* nchars_ref = nullptr, int options = NO_OPTIONS) const;
+  V8_DEPRECATED("Use Isolate* version",
+                int WriteUtf8(char* buffer, int length = -1,
+                              int* nchars_ref = nullptr,
+                              int options = NO_OPTIONS) const);
 
   /**
    * A zero length string.
@@ -2786,6 +2819,9 @@ class V8_EXPORT String : public Name {
    */
   static Local<String> Concat(Isolate* isolate, Local<String> left,
                               Local<String> right);
+  static V8_DEPRECATED("Use Isolate* version",
+                       Local<String> Concat(Local<String> left,
+                                            Local<String> right));
 
   /**
    * Creates a new external string using the data defined in the given
@@ -2854,6 +2890,8 @@ class V8_EXPORT String : public Name {
    */
   class V8_EXPORT Utf8Value {
    public:
+    V8_DEPRECATED("Use Isolate version",
+                  explicit Utf8Value(Local<v8::Value> obj));
     Utf8Value(Isolate* isolate, Local<v8::Value> obj);
     ~Utf8Value();
     char* operator*() { return str_; }
@@ -2877,6 +2915,7 @@ class V8_EXPORT String : public Name {
    */
   class V8_EXPORT Value {
    public:
+    V8_DEPRECATED("Use Isolate version", explicit Value(Local<v8::Value> obj));
     Value(Isolate* isolate, Local<v8::Value> obj);
     ~Value();
     uint16_t* operator*() { return str_; }
@@ -5271,6 +5310,8 @@ class V8_EXPORT BooleanObject : public Object {
 class V8_EXPORT StringObject : public Object {
  public:
   static Local<Value> New(Isolate* isolate, Local<String> value);
+  V8_DEPRECATED("Use Isolate* version",
+                static Local<Value> New(Local<String> value));
 
   Local<String> ValueOf() const;
 
@@ -10127,6 +10168,30 @@ template <class T> Value* Value::Cast(T* value) {
 }
 
 
+Local<Boolean> Value::ToBoolean() const {
+  return ToBoolean(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(Local<Boolean>());
+}
+
+
+Local<String> Value::ToString() const {
+  return ToString(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(Local<String>());
+}
+
+
+Local<Object> Value::ToObject() const {
+  return ToObject(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(Local<Object>());
+}
+
+
+Local<Integer> Value::ToInteger() const {
+  return ToInteger(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(Local<Integer>());
+}
+
+
 Boolean* Boolean::Cast(v8::Value* value) {
 #ifdef V8_ENABLE_CHECKS
   CheckCast(value);
diff --git a/src/api.cc b/src/api.cc
index 4000a95a2e52..ed4113a3381f 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -2181,6 +2181,10 @@ int PrimitiveArray::Length() const {
   return array->length();
 }
 
+void PrimitiveArray::Set(int index, Local<Primitive> item) {
+  return Set(Isolate::GetCurrent(), index, item);
+}
+
 void PrimitiveArray::Set(Isolate* v8_isolate, int index,
                          Local<Primitive> item) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
@@ -2194,6 +2198,10 @@ void PrimitiveArray::Set(Isolate* v8_isolate, int index,
   array->set(index, *i_item);
 }
 
+Local<Primitive> PrimitiveArray::Get(int index) {
+  return Get(Isolate::GetCurrent(), index);
+}
+
 Local<Primitive> PrimitiveArray::Get(Isolate* v8_isolate, int index) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
   i::Handle<i::FixedArray> array = Utils::OpenHandle(this);
@@ -2899,6 +2907,10 @@ void Message::PrintCurrentStackTrace(Isolate* isolate, FILE* out) {
 
 // --- S t a c k T r a c e ---
 
+Local<StackFrame> StackTrace::GetFrame(uint32_t index) const {
+  return GetFrame(Isolate::GetCurrent(), index);
+}
+
 Local<StackFrame> StackTrace::GetFrame(Isolate* v8_isolate,
                                        uint32_t index) const {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
@@ -3858,6 +3870,36 @@ void v8::RegExp::CheckCast(v8::Value* that) {
 }
 
 
+bool Value::BooleanValue() const {
+  return BooleanValue(Isolate::GetCurrent()->GetCurrentContext())
+      .FromJust();
+}
+
+
+double Value::NumberValue() const {
+  return NumberValue(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(std::numeric_limits<double>::quiet_NaN());
+}
+
+
+int64_t Value::IntegerValue() const {
+  return NumberValue(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(0);
+}
+
+
+uint32_t Value::Uint32Value() const {
+  return Uint32Value(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(0);
+}
+
+
+int32_t Value::Int32Value() const {
+  return Int32Value(Isolate::GetCurrent()->GetCurrentContext())
+      .FromMaybe(0);
+}
+
+
 Maybe<bool> Value::BooleanValue(Local<Context> context) const {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate());
   return Just(Utils::OpenHandle(this)->BooleanValue(isolate));
@@ -3946,6 +3988,12 @@ MaybeLocal<Uint32> Value::ToArrayIndex(Local<Context> context) const {
 }
 
 
+bool Value::Equals(Local<Value> that) const {
+  return Equals(Isolate::GetCurrent()->GetCurrentContext(), that)
+      .FromMaybe(false);
+}
+
+
 Maybe<bool> Value::Equals(Local<Context> context, Local<Value> that) const {
   i::Isolate* isolate = Utils::OpenHandle(*context)->GetIsolate();
   auto self = Utils::OpenHandle(this);
@@ -5269,6 +5317,10 @@ bool String::ContainsOnlyOneByte() const {
   return helper.Check(*str);
 }
 
+int String::Utf8Length() const {
+  return Utf8Length(Isolate::GetCurrent());
+}
+
 int String::Utf8Length(Isolate* isolate) const {
   i::Handle<i::String> str = Utils::OpenHandle(this);
   str = i::String::Flatten(reinterpret_cast<i::Isolate*>(isolate), str);
@@ -5421,6 +5473,14 @@ static int WriteUtf8Impl(i::Vector<const Char> string, char* write_start,
 }
 }  // anonymous namespace
 
+
+int String::WriteUtf8(char* buffer, int capacity,
+                      int* nchars_ref, int options) const {
+  return WriteUtf8(Isolate::GetCurrent(),
+                   buffer, capacity, nchars_ref, options);
+}
+
+
 int String::WriteUtf8(Isolate* v8_isolate, char* buffer, int capacity,
                       int* nchars_ref, int options) const {
   i::Handle<i::String> str = Utils::OpenHandle(this);
@@ -5461,6 +5521,18 @@ static inline int WriteHelper(i::Isolate* isolate, const String* string,
 }
 
 
+int String::WriteOneByte(uint8_t* buffer, int start,
+                         int length, int options) const {
+  return WriteOneByte(Isolate::GetCurrent(), buffer, start, length, options);
+}
+
+
+int String::Write(uint16_t* buffer, int start, int length,
+                  int options) const {
+  return Write(Isolate::GetCurrent(), buffer, start, length, options);
+}
+
+
 int String::WriteOneByte(Isolate* isolate, uint8_t* buffer, int start,
                          int length, int options) const {
   return WriteHelper(reinterpret_cast<i::Isolate*>(isolate), this, buffer,
@@ -6430,6 +6502,11 @@ MaybeLocal<String> String::NewFromTwoByte(Isolate* isolate,
   return result;
 }
 
+Local<String> v8::String::Concat(Local<String> left,
+                                 Local<String> right) {
+  return Concat(Isolate::GetCurrent(), left, right);
+}
+
 Local<String> v8::String::Concat(Isolate* v8_isolate, Local<String> left,
                                  Local<String> right) {
   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate);
@@ -6713,6 +6790,11 @@ bool v8::BooleanObject::ValueOf() const {
 }
 
 
+Local<v8::Value> v8::StringObject::New(Local<String> value) {
+  return New(Isolate::GetCurrent(), value);
+}
+
+
 Local<v8::Value> v8::StringObject::New(Isolate* v8_isolate,
                                        Local<String> value) {
   i::Handle<i::String> string = Utils::OpenHandle(*value);
@@ -8925,6 +9007,9 @@ bool MicrotasksScope::IsRunningMicrotasks(Isolate* v8Isolate) {
   return isolate->default_microtask_queue()->IsRunningMicrotasks();
 }
 
+String::Utf8Value::Utf8Value(v8::Local<v8::Value> obj)
+  : Utf8Value(Isolate::GetCurrent(), obj) {}
+
 String::Utf8Value::Utf8Value(v8::Isolate* isolate, v8::Local<v8::Value> obj)
     : str_(nullptr), length_(0) {
   if (obj.IsEmpty()) return;
@@ -8944,6 +9029,9 @@ String::Utf8Value::~Utf8Value() {
   i::DeleteArray(str_);
 }
 
+String::Value::Value(v8::Local<v8::Value> obj)
+  : Value(Isolate::GetCurrent(), obj) {}
+
 String::Value::Value(v8::Isolate* isolate, v8::Local<v8::Value> obj)
     : str_(nullptr), length_(0) {
   if (obj.IsEmpty()) return;